Electric motor, air conditioner, vacuum cleaner, and method for producing electric motor

An electric motor comprising:

• a stator;
• and
• a metal component that is in contact with the stator,
• the stator including
• a first tooth,
• a second tooth,
• a first winding wound around the first tooth by concentrated winding,
• a second winding wound around the second tooth by concentrated winding, and
• a thermal conduction sheet held between the first winding and the second winding and to conduct heat of the first winding and the second winding to the metal component, wherein
• the thermal conduction sheet is held between the metal component and the first winding in a deformed state, and
• the thermal conduction sheet is held between the metal component and the second winding in a deformed state, wherein
• the metal component includes
• a first inner surface formed on one end side in an axial direction, and
• a second inner surface formed on the other end side in the axial direction, and
• the thermal conduction sheet is alternately in contact with the first inner surface and the second inner surface in a circumferential direction.

A method for producing an electric motor including a first split core including a first winding, a second split core including a second winding, a metal component covering the first split core and the second split core, a first thermal conduction sheet to conduct heat, and a second thermal conduction sheet to conduct heat, the method comprising:

• producing the first split core and the second split core, the first split core including a first tooth and a first insulator disposed on the first tooth, the second split core including a second tooth and a second insulator disposed on the second tooth, the first insulator being different from the first thermal conduction sheet, the second insulator being different from the second thermal conduction sheet;
• winding the first thermal conduction sheet around the first tooth and the first winding wound around the first tooth and winding the second thermal conduction sheet around the second tooth and the second winding wound around the second tooth;
• folding the first split core and the second split core so that the first thermal conduction sheet and the second thermal conduction sheet are held between the first winding and the second winding;
• and
• disposing the first split core and the second split core in the metal component so that the first thermal conduction sheet and the second thermal conduction sheet come in contact with the metal component in a deformed state.